this is my a cup病句修改

this is my a cup病句修改 改病句 This is my a cup This is my mother timetale 修改病句 this is my cup,( )cup is ( ) bule. 修改病句:This is a Mary A man behing my sister is my father修改病句 this is a key of the door修改病句 This is my cup.改为一般疑问句. This is ( )cup.( )cup is yellw.A.a 初一句型转换.This is my cup -this-cup? It is my backpackIt-my back My brother is going to buys a book修改病句 My mother's brother is a police 修改病句